Abstract: Aiming at the technical difficulties such as limitation of gas pre-extraction efficiency and lack of uniformity of the distribution of holes in the comprehensive mining face of high-gas mines under strong mining conditions, we selected the comprehensive mining face of Wangcun Coal Mine as the engineering test object, constructed the directional long-drill hole gas reservoir dynamics model based on the COMSOL multiphysics field simulation platform, investigated the temporal and spatial evolution law of the gas pressure field of the coal body under the configuration of different drilling spacings and optimized the parameters of drilling arrangement in combination with the critical criterion of meeting the standard. The optimized drilling parameters were combined with the critical criterion of reaching the standard, and the regional pre-pumping project of long drilling holes was verified. The analysis of experimental data shows that, under the conditions of fixed hole diameter and negative pressure, it takes 123, 215 and 357 days to realize the pressure standard when the spacing of 20, 27 and 35 m, respectively; in the industrial test for the 27 m spacing scheme, it is observed that the gas flow rate exhibits the characteristics of three-stage evolution-exponential growth in the initial period, oscillating climb in the middle period, and rapid decay in the late period. The industrial test for the 27 m spacing scheme observed that the gas flow showed a three-stage evolution - exponential growth in the initial period, oscillatory increase in the middle period and rapid decay in the later period. Measured data show that the average daily pure volume of single-hole extraction reaches 1.669 m³/min (350-day cycle), and the peak flow rate reaches 2.680 m³/min at 250 days of pre-pumping cycle, and the flow rate decay coefficient is maintained at a low level.